对于亚像素精度，它支持与六抽头插值滤波器四分之一像素运动矢量。
For subpixel precision, it supports quarter-pel motion vectors with a 6-tap interpolation filter.
RV40证明了这一点，一个滑稽的例子就是一个本应该输入33的地方被错误输入成22，导致四分之一像素运动补偿功能错误。
RV40 had a hilarious example of this, where a typo of "22" instead of "33" resulted in quarter-pixel motion compensation being broken.
RV40证明了这一点，一个滑稽的例子就是一个本应该输入33的地方被错误输入成22，导致四分之一像素运动补偿功能错误。
RV40 had a hilarious example of this, where a typo of "22" instead of "33" resulted in quarter-pixel motion compensation being broken.
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